Minerals identify

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Tschermigite

Sulfate mineral

Tschermigite is a mineral form of ammonium alum , formula N 4)2·12(H2O). It is found in burning coal seams shale. Because of its extreme water solubility it is unlikely to persist except in the dryest of conditions. Discovered in 1852 at Cermiky, also known as Tschermig in Bohemia. It is colorless and named for where it was discovered.

Identification

Color of mineral

White

Density ( specific gravity )

1.458

Luster ( interacts light )

Vitreous
Silky

Crystal ( diaphaneity )

Isometric